Three countries have written filtering into law in three completely different ways. New South Wales permits it below 30 km/h (19 mph) for fully licensed riders only. France permits it below 50 km/h (31 mph) but only on motorways and dual carriageways, and only between the two leftmost lanes. Britain has no filtering offence and no filtering permission — the Highway Code simply tells you to take care and keep your speed low. Knowing which model you are riding under matters more than knowing that filtering is "legal". Checked August 2026; the road authority of the country you are in is the binding source.
New South Wales, the most tightly specified version
Australia's approach is to define filtering precisely and then attach conditions to it. From the state government's own guidance, lane filtering — moving alongside vehicles that have stopped or are moving at less than 30 km/h — is legal in NSW, with strict conditions.
The conditions are worth listing exactly, because each one is enforceable.
- You must only filter while travelling under 30 km/h, through stationary or slow-moving traffic.
- Only fully licensed motorcyclists may filter. Learner and provisional riders may not.
- It is illegal to filter next to the kerb, next to parked vehicles, or in school zones.
- All existing road rules still apply, including stopping before the stop line at a red light or stop sign, never in front of it or over it.
- Riders should not filter around heavy vehicles and buses, and should watch for pedestrians and cyclists.
Above 30 km/h it stops being filtering and becomes a separate offence called lane splitting, carrying heavy fines and three demerit points. Filtering unsafely can also be charged as negligent, furious or reckless driving, which is a considerably more serious matter than a fixed penalty.
The guidance places a duty on drivers too: motorists should not deliberately move into the path of a motorcyclist who is legally filtering. Transport for NSW publishes wider motorcyclist road safety material alongside it.
France, where filtering is a motorway manoeuvre
France spent years running the practice as an experiment before regulating it, and the resulting rules are almost the mirror image of the Australian ones. Filtering there is not an urban traffic-queue technique at all.
Under the current rules, summarised on the road safety authority's page on circulation inter-files, the manoeuvre is permitted only for two- and three-wheelers no more than one metre wide, only on motorways and dual carriageways separated by a central reservation with at least two lanes in each direction where the speed limit is 70 km/h (43 mph) or higher, only when traffic has formed continuous queues across all lanes, only between the two leftmost lanes, and at no more than 50 km/h.
Read that against the Australian version and the difference is stark. A rider filtering through a city-centre traffic queue is doing something normal in Sydney and outside the French framework entirely. A rider filtering up the outside lanes of a jammed autoroute at 50 km/h is doing something regulated in France and illegal in New South Wales.
Three legal models compared
| Element | New South Wales | France | United Kingdom |
|---|---|---|---|
| Legal status | Expressly permitted with conditions | Expressly permitted with conditions | Neither prohibited nor expressly permitted |
| Speed ceiling | 30 km/h (19 mph) | 50 km/h (31 mph) | None stated, the Code says keep speed low |
| Where | Any road, except beside kerbs, parked vehicles and in school zones | Motorways and dual carriageways only, between the two leftmost lanes | Anywhere, subject to general offences |
| Who | Fully licensed riders only | Vehicles up to one metre wide | No rider restriction stated |
| If it goes wrong | Lane splitting offence, or careless and dangerous driving charges | Outside the conditions, the general road rules apply | Careless or dangerous driving, and contributory negligence in a claim |
Britain, where the absence of a rule is the rule
There is no British offence of filtering and no British provision permitting it. What exists is Rule 88 of the Highway Code, which covers manoeuvring and closes with the instruction that when filtering in slow-moving traffic you should take care and keep your speed low.
That single sentence carries more weight than it looks. Rule 88 uses "should" rather than "must", so breaching it is not itself an offence, but the Code is admissible in evidence and a rider who filtered fast will find that sentence quoted at them in any proceedings or insurance dispute that follows.
The rest of Rule 88 is the practical part. Be aware of what is behind and to the sides before manoeuvring, look behind you, use mirrors if fitted, watch for pedestrians crossing between vehicles and vehicles emerging from junctions or changing lanes, and position yourself so drivers ahead can see you in their mirrors.
The honest trade-off in the British model is that freedom and exposure come together. Nothing stops you filtering at 40 mph past a queue. Nothing protects you either, and the standard applied afterwards is whether a careful and competent rider would have done it.
Riding it safely wherever you are
- Look up the rule for the specific country before the trip, not at the first jam. The three models above show that guessing from experience elsewhere gets you the wrong answer.
- Fix a speed differential you are comfortable with rather than an absolute speed. Passing stationary traffic at 25 km/h and passing 25 km/h traffic at 50 are not the same manoeuvre, whatever a legal ceiling says.
- Treat gaps in the queue as hazards. A space left by a considerate driver is where a pedestrian or a turning car will appear.
- Stay out of the space beside heavy vehicles. NSW advises against it explicitly, and the reason is that a truck driver cannot see you and cannot stop for you.
- Cover the brakes and stop filtering as traffic begins to move. Almost every filtering incident happens in the transition from stopped to moving, when drivers change lanes without checking.
The counterargument deserves a hearing. Filtering removes you from the most dangerous place a motorcycle can be, which is stationary at the back of a queue with a distracted driver approaching. That is a real safety benefit, not a convenience argument, and it is why several jurisdictions legalised the practice rather than banning it. The benefit disappears at speed.
One point of comparison is worth keeping in mind when you read anything on this subject. The Australian and French rules were written after formal trials and are enforced with specific offences attached, so the published conditions are the operative law. The British position is inherited practice with an advisory rule sitting over it, which means the standard is decided case by case and after the event. Neither model is more permissive in general terms — they simply put the uncertainty in different places.
It is also worth separating the legal question from the practical one when you cross a border on a tour. Local drivers behave according to the rule they grew up with, not the one written down where you came from. In a place where filtering is routine, drivers expect a bike alongside them in a queue and leave a gap. In a place where it is unusual, the same manoeuvre surprises them, and a surprised driver in a stationary queue changes lanes without looking. Read the traffic before you read the statute.
Frequently asked questions
Is lane filtering legal in Australia?
In New South Wales yes, below 30 km/h, for fully licensed riders only, and not beside kerbs or parked vehicles or in school zones. Other states set their own rules, so check the one you are riding in.
What is the difference between lane filtering and lane splitting?
In NSW filtering is passing stopped or slow traffic at under 30 km/h. Splitting is doing it above 30 km/h and is a separate offence carrying heavy fines and three demerit points.
Is filtering legal in the UK?
There is no offence of filtering and no rule permitting it. Rule 88 of the Highway Code advises taking care and keeping your speed low, and that wording is used in evidence when things go wrong.
Can I filter through a city traffic queue in France?
The French rules apply to motorways and dual carriageways with a central reservation and a limit of 70 km/h or more, between the two leftmost lanes, so ordinary urban queues are outside the framework.
Can learner riders filter?
Not in New South Wales, where it is restricted to fully licensed motorcyclists. Elsewhere the restriction may not exist, which does not make it a good idea on a first season.
Filtering rules sit alongside the licence conditions in the Australian LAMS guide and the UK CBT and licence route, since in both places what you may do depends on which licence you hold. Riders touring across borders should also read the paperwork checklist for riding abroad and, for city stops, the notes on low emission zones and motorcycles. If you filter regularly in traffic, a recorded view of the lane beside you is worth more than any argument about who was where, and the JADO S6 riding system keeps route prompts on the bars where filtering demands your eyes stay up.
